Wrench



Y. L. CHEW Oct. 27, 1931.

WRENCH Filed July 25, 1929 2 Sheets-Sheet gwuefntoz Oct. 27, 1931. Y CHEW 1,829,473

WRENCH Filed JulyA 25, 1929 2 Sheets-Shee1 2 Patented ct. 247, 1931 PATEN T `OFFICE YEE LAIN CI-IEW, OF GOPENG, PERAK, FEDERATED MALAY STATES WRENCH Application filed July 25, 1'9'29. fSerial lo. 381,020.

The more specific objects and advantages ,15 will become apparent from a consideration of the description following taken in connection with accompanying drawings illustrate ing an operative embodiment.

In said drawings Figure l is a view of the tool in side elevation,

Figure `2 is a longitudinal sectional view taken on the line 2 2 of Figure l,

Figure 3 is a substantially central vertical sectional view through the tool, that is taken at a right angle to Figure 2,

Figure 4 is a view in elevation, partly broken away, showing the tool in position for use as pliers,

l Figure 5 is a sectional view taken on the line 5 5 of Figure l,

Figure 6 is a sectional View taken on the line 6 6 of Figure l,

Figure 7 is a sectional view taken on the i line 7 7 of Figure l,

Figure 8 is a cross sectional view taken on the line 8 8 of Figure 4,

Figure 9 is a cross sectional view taken on the line 9 9 of Figure 3, ,-4'3 Figure 10 is an end elevation of one of the jaws, and

Figure 1l is a sectional view taken on the line ll 1l of Figure l.

Referring specifically to the drawings, l0 generally designates a jaw or head and ll generally designates another jaw or head. Such jaws coact to the end that the tool may serve as a Spanner or wrench and also as pliers. Such jaws may have coacting wire cutting means as at l2 and 13 asin pliers and also havea cut away portion 14, the walls of which are serrated 1as shown, to facilitate gripping small articles.

The jaw ll has van elongated handle portionall 1.5 which is generally of I-shape in V cross section and whose free end is formed into al screw driver blade as at 16.

The jaw lO has asplit or bifurcated shank generally designated 17 providing side portions 18 and a slot 19 between them which $0 receives a web 2010i the iaw ll, whereby the latter is slidably mounted .on the shank 17. The 'I-shape .of the jaw l1 provides ribs 2l and y22 at top and bottom lof the web which overlap side portions .18. 55

.Associated with the ljaw ll is a .lever 23 which is generally of .channel form, having spaced side 1portions 24 embracing opposite sides ofthe tool :and being pivotally connected together :and to the j aw by rmeans .of fa pin #o 25. Carried by bracket26 to .be laterspeciti- .cally :referred to, is a pin .or stud .27 about which the ,lever 23iilcru1ns in order to slide Athe jaw l1, the side portions 24 of the lever having inclined or elongated slots28 through *15 which said p`in227 passes.

.Normally thelever 23 'is fixed and inactive, its channel enabling .the .same to .snugly engage the adjacent part of the jaw ll, :the :same being fastened in .the latter position by means of abail 29 of U-iorm pivoted at -30 Ato the web 20. It will be .noted that the louter surface Aof the handle 15 and outer surface of lever A23 ,are lmurled or Toughened ,as at 3l .and32 to Afacilitate gripping. 85 The lpin 27 .is .capable ,of traveling the length of .theslot .or .cut away portion 3.3 provided in Athe handle l5 .to permit .movement to the .saine extent, of the bracket 26 which carriessuch pin. This feature enables down- 'wardswingingof lever 23 `to .tend to draw the jawlO toward the jawll lor :toward the work .and .at vthe `same time causing the `bracket 26 to slide .downwardly 'The web v2() has ,a cut away ,portion 34 'in which .an exteriorly @9'5" iknunle'd :adjusting nut v35 is disposed, ,such :nut ibeing :screw 4threaded Von ,a :shank 36 eX- tending rearwardly from the shank of the jaw 10, the shank being bifurcated as shown inFiguref2 at the side ,portions 18 Ato enable :190

- posed for Yfinger manipulation. The sides at 39 and Zl0 atobliquelyopposite corners 'toliv Yaccommodate the sleeves 88 at the opposite- ,y

sliding movement with respect tothe'web 20.

rIhe bracket 26 is generally of U-shape, embracing opposite sides of the jaws and having lopenings or' cut awayr Vportions 36 through its sides so that the nutc is eX- of the bracket 26 vare also connected by `means of bolts 37 'which are surrounded byspacf Yrisas-Mi a bail carried by one 'of the aws andengag ab-lewith said lever to maintain the same in compact relation to the jaws.

In testimony whereof I aiix my signature.

y YER LAIN CHEW.

ingv sleeves 38 located in the cut away portion 34, the cut away portion 34 having extensions limits of movement of the bracket. As a result of this construction, whenjthellever 23 Y is iiXed as shown in Figuresl and 3, the nut 35 may beinanipulated to kfmove'the jaws 10 and 11 relatively to each other, such movement being permittedlby the clearance af- "I orded'by space 34` and-space 33.

In operating the device, it will be" realized that'thefpln 27 and 'nut' slide as a single unit with the bracket 26 and that the jaw 1U when actuated by the nut 35 slides with 'respectto `the' bracket 26 so that the jaw 11 and its web -20 being iiXed or non-movable, the rotating'of4 the vnut 35 will cause the'j aw '10 toslide towardsoraway from the jaw 11 and -the'bracket 26 to give the approximate 'or initial ldistance betweenk the jaws, of the disthe slot 28K.v Then toget the final tightening 5 Vof thejaws on the said article, the lever 23 Y tance across the `article toV be turned, the

11 by means of the position of the pin 27 in which lpivots on pin 25 canvbeltilted so that the sides of the slot 28 bearing upon the pin 27'as a fulcrum will cause the pin 27, the nutv 35' and the slide 26 Vto movedownwardly as a unit within the limitslof the extensions 39 bracket 26 being temporarily fixed to the jaw '7" 'j and 40 and inasmuch as the jaw lOislocked l tothe nut 35 by means of the threads on the nut and the shank 36, the `jaw 10 will `also Y move downwardly with the said unit. i

Various changes may be resorte'd'to pro-V vided they fall within the spirit and scope of theinvention. f V:

I claim as my invention LA tool of the class describedcompris'- A ing a first jaw member, a second jaw member, Y

said second jaw member telescoping into the rst jawmember and having a screw, a nut threaded on said screw, a bracket slidable on ythe first jaw' member, a lever pivotedto the iirst jaw member, said lever having a slot,

'a pin on said bracket disposedinsaid slot,

said nut and pin being slidable'asa unit, with Y I said bracket, said second yjaw member being movable relatively to the rst jaw member bythe nut, the bracket during the' latter operation being temporarily Xed to the rst mentioned jaw by means of said pin'and slot, and

said'leverbeing tiltablefso that the pin and slot connection Ywill cause said `pin,`nut and I bracket to move downwardly as a unit. i 2.` rIlhe subject-matter of claim 1 including 

